Atec EMCO-3117 User Manual

FEATURES:

n Ultra Broadband: 1 GHz - 18 GHz

n Maintains Single Lobe Radiation

Pattern Over Frequency

n 300 W Power Input Capacity

n Optimized High Frequency Gain

 

n

Low VSWR

EMC Antennas

Double-Ridged

Waveguide Horn

Model 3117

3-D Patterns

Available at

www.ets-lindgren.com/3117

n Flexible Mounting Systems

The Model 3117 Double Ridged
Waveguide is a the latest addition

to a family of double ridge
waveguides for microwave and
EMC measurement from
ETS-Lindgren. This model
corrects the lower gain at the
upper end of the frequency
range, commonly found in ridged
waveguide antennas. Users of

this antenna benet from uniform

illumination of target surfaces and
accurate gain measurement. In
addition, the Model 3117 exhibits
high gain and low VSWR across
its operational frequency band,
accepting moderate power input of
300 watts.

ETS-Lindgren’s Model 3117 Double-Ridged Waveguide Horn

PATENT # 6,995,728

The electrical characteristics of this
antenna were designed and modeled
using powerful workstations
running electromagnetic simulation
software. Equally important,
experienced RF engineers worked
with our manufacturing team to
produce a practical and affordable
realization of the modeling
process. All production units are
individually calibrated at our A2LA
accredited lab.

FEATURES
Single Lobe Radiation Pattern

The Model 3117 maintains a single
main lobe pattern in the direction
of the horn axis over its frequency

range. This characteristic is
essential for even distribution of
electromagnetic energy on a target
surface, and accurate measurement
of gain and vector information.
The Model 3117’s unique design
suppresses the propagation of
high order modes. The result is

an antenna with a well-dened

single lobe radiation pattern that
outperforms other antennas in its
class.

Ultra Broadband

The Model 3117 sweeps from
1 GHz to 18 GHz without stopping
for band breaks, making it ideal

www.ets-lindgren.com

EMC Antennas

Double-Ridged

Waveguide Horn

Model 3117

for automated testing. It has the
widest usable frequency range of
any antenna in its class, with no
performance degradation from high
order modes.

Power Input

The Model 3117 uses a Type N
connector and accepts up to
300 watts of continuing input
power with up to 400 watts of peak
power. The antenna’s high gain
and low VSWR over its operating

frequency translates into efcient
amplier use and high eld

strengths.

Uniform Gain, Low VSWR

The Model 3117 has a more
uniform gain and antenna factor
because of the better behavior of
its radiation pattern. Since the
pattern is stable over frequency,
the gain and the AF also remain
stable. Similar antennas of this
class exhibit large variations of the
gain and the AF as the frequency
increases.

Flexible Mounting System

The Model 3117 antenna includes
both an EMCO classic mount and a

rear “stinger” mount.

STANDARD CONFIGURATION

nAntenna Assembly

nMounting bracket drilled to

accept ETS-Lindgren or
other tripod mounts with 1/4 in
x 20 threads

nRear “stinger” Mount

nIndividually calibrated at 1 m

per SAE ARP 958 at our
A2LA accredited lab. 3 m
calibration per ANSI C63.5
available at additional cost.
Actual antenna factors and a

signed Certicate of Calibration

Conformance included with
manual.

OPTIONS

n Antenna Mast

n Antenna Tripod

Electrical Specifications

MODEL FREQUENCY VSWR MAXIMUM PEAK IMPEDANCE CONNECTORS
RANGE RATIO CONTINUOUS POWER (NOMINAL)
(AVG) POWER

3117 1 GHz - 18 GHz 3.5:1 max 300 W 400 W 50
<2:1 above 1.5 GHz

Ω Type N

Physical Specifications

MODEL WIDTH DEPTH HEIGHT WEIGHT

3117 17.5 cm 17.5 cm + 15.5 cm mount 15.5 cm 1.13 kg

6.9 in 6.9 in + 6.1 in mount 6.1 in 2.5 lb

www.ets-lindgren.com